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Eye movements are so closely tied to the way we think and act that they can even reveal information about our personalities. In a study published this month in the journal Cognition, researcher Aaron Risko and his coauthors asked experimental subjects to complete a questionnaire gauging their levels of curiosity, defined as a desire for new knowledge and new experiences. The scientists then used eye-tracking equipment to record the eye movements of participants as they viewed a series of scenes. People who tested as highly curious, Risko reported, looked at many more elements of the pictures, restlessly moving their eyes around the scenes. “Who a person is,” he concluded, “relates to how they move their eyes.
